package com.cgt.xiaotao.oss.service.impl;


import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.cgt.xiaotao.oss.service.IFileService;
import com.cgt.xiaotao.oss.util.ConstantPropertiesUtil;
import lombok.extern.slf4j.Slf4j;
import org.joda.time.DateTime;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;
import java.io.InputStream;
import java.util.UUID;

@Slf4j
@Service
public class FileServiceImpl implements IFileService {

    @Override
    public String upload(MultipartFile file) {
        // 获取阿里云仓库的连接信息     endpoint accessKey bucketName
        // Endpoint以杭州为例，其它Region请按实际情况填写。
        String endpoint = ConstantPropertiesUtil.END_POINT;
        String accessKeyId = ConstantPropertiesUtil.ACCESS_KEY_ID;
        String accessKeySecret = ConstantPropertiesUtil.ACCESS_KEY_SECRET;
        String bucketName = ConstantPropertiesUtil.BUCKET_NAME;
        try {
            // 创建OSSClient实例。
            OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);

            // 上传文件流。
            InputStream inputStream = file.getInputStream();
            String fileName = file.getOriginalFilename();

            //生成随机唯一值，使用uuid，添加到文件名称里面
            String uuid = UUID.randomUUID().toString().replaceAll("-", "");
            fileName = uuid + fileName;

            //按照当前日期，创建文件夹，上传到创建文件夹里面
            //  2021/02/02/01.jpg
            String timeUrl = new DateTime().toString("yyyy/MM/dd");
            fileName = timeUrl + "/" + fileName;

            //调用方法实现上传
            ossClient.putObject(bucketName, fileName, inputStream);

            // 关闭OSSClient。
            ossClient.shutdown();

            //上传之后文件路径
            // https://yygh-atguigu.oss-cn-beijing.aliyuncs.com/01.jpg
            String url = "https://" + bucketName + "." + endpoint + "/" + fileName;
            log.debug("文件上传成功 {}", url);
            //返回 url
            return url;
        } catch (IOException e) {
            //e.printStackTrace();
            log.debug("文件上传失败 {}", e.toString());
            return null;
        }
    }
}